The Gear,spur, cataloged under National Stock Number 3020-01-070-8528, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Cummins Inc.. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-070-8528 |
| Primary Part Number | 21163600 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.750 INCHES COUNTERBORE FIRST END IN |
| Teeth Quantity | 26 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.875 INCHES COUNTERBORE FIRST END IN |
| Bore Style | W/COUNTERBORE COUNTERBORE FIRST END |
| Style Designator | HUBLESS |
| Pitch Diameter | 1.3000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 1.400 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.063 INCHES COUNTERBORE FIRST END IN |
| Face Nominal Width | 0.312 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 21163600 PRIMARY | Cummins Inc. (USA) |
| Reference | Meaning |
|---|---|
| 211636 | 5/9 Secondary reference Cummins Inc. |
NSN 3020-01-070-8528 is a Gear,spur, manufactured by Cummins Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-070-8528 has 1 manufacturer part number on file: 21163600 (Cummins Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-431-8094. Verify interchangeability with system specifications before substitution.
Key specifications for 21163600: Bore Nominal Diameter: 0.750 INCHES COUNTERBORE FIRST END IN; Teeth Quantity: 26; Body Style: PLAIN, SOLID; Counterbore Nominal Diameter: 0.875 INCHES COUNTERBORE FIRST END IN. 13 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.